Re: {Chrysler 300} 392 oil drain plug

[John Grady <jkg@xxxxxxxxxxxxxxxxx>]

yes, —- contacted vendor , he observed that back in the day when people had 1000 mile oil changes , stripped oil pan plugs were common and several companies made plugs that are factually almost taps —that have the same threads per inch — so they self pilot , but are a non standard slight oversize . I wondered why my plug had sort of four segmented legs  standing up , now realize it is to tap , and chips fall through 4 slots into central hole .     Then you would clean it out. Has a nice beefy thick neoprene washer too . It is too small to be 7/8 , it is about .020 over 5/8 . 

Good to know !!!!  

Also along same line , one of my valve adjuster screws on hemi was ruined , long ago cross threaded — try to find 1/2 -32 anything (!!) — taps nuts or screws. I 

was flipping out, then found that hot heads has those screws . I bought 6! those are really easy to get started wrong , instant wreck  ... unobtainium ... 

Sent from my iPhone not by choice 

On 3 Apr 2021, at 3:06 pm, Lynn Dunsworth <lynnrd37@xxxxxxxxx> wrote:

John,  the 55-58 parts manual shows the '57 Chrysler using a 7/8"-18 plug and the '58 using a 5/8"-18.  Maybe the .646 plug was a "repair" type self tapping?  I made a magnetic one on my '57 Desoto by drilling two small holes in it and epoxying the magnets from the small screwdrivers.  Lynn

Virus-free. www.avast.com

On Sat, Apr 3, 2021 at 12:25 PM Henry A. Mitchell III <hamlll@xxxxxxxxxxxxxx> wrote:

If all else fails.

 

Henry A. Mitchell 300C

 

From: chrysler-300-club-international@xxxxxxxxxxxxxxxx <chrysler-300-club-international@xxxxxxxxxxxxxxxx> On Behalf Of John Grady
Sent: Friday, April 02, 2021 3:33 PM
To: Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: {Chrysler 300} 392 oil drain plug

 

Anyone know real size? Later 413 says 5/8 -18 , measured mine from 392 it is .646 , ordered a 5/8-18 it is . 616 if you believe those guys. 5/8 is of course .625 , which is how bolts are measured --checked that. 

Trying to get magnetic drain bolt. All are too small ?????

 

Thanks . 

 

John

--
For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang
---
You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group.
To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx.
To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/CABZ1P2B%2Bb6LCOMhukAq6Kpb9DJ1n4ZRzOq3P-RNV_V7Kbj1B8w%40mail.gmail.com.

---

This email has been checked for viruses by Avast antivirus software. www.avast.com

--
For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang
---
You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group.
To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx.
To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/001301d728b6%24b383b0b0%241a8b1210%24%40mindspring.com.

--
For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang
---
You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group.
To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx.
To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/BBE84BDC-821B-490D-BEAE-0B8A3E6F564D%40gradyresearch.com.